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Execute Command

sealos exec is a command in the Sealos command-line tool, used to execute Shell commands or scripts on specified cluster nodes. This guide will detail its usage and options.

Basic Usage​

The basic sealos exec command format is as follows:

sealos exec "shell command or script"

In the above command, shell command or script is the Shell command or script you want to execute on the cluster nodes.

Options​

The sealos exec command provides the following options:

  • -c, --cluster='default': The name of the cluster on which the command will be executed. The default is default.

  • --ips=[]: Run commands on nodes with specified IP addresses.

  • -r, --roles='': Run commands on nodes with specified roles. Currently supports master,node,registry.

Each option can be followed by one or more parameters.

Examples​

For example, you can use the following command to view the contents of the /etc/hosts file on all nodes of the default cluster:

sealos exec "cat /etc/hosts"

If you want to view the contents of the /etc/hosts file on nodes with master and node roles in a cluster named my-cluster, you can use the following command:

sealos exec -c my-cluster -r master,node "cat /etc/hosts"

If you only want to view the contents of the /etc/hosts file on a node with the IP address 172.16.1.38, you can use the following command:

sealos exec -c my-cluster --ips 172.16.1.38 "cat /etc/hosts"

That's the usage guide for the sealos exec command, and we hope it has been helpful. If you encounter any problems during usage, feel free to ask us.